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Bi-directional power control system for voltage converter

  • US 5,903,449 A
  • Filed: 06/09/1998
  • Issued: 05/11/1999
  • Est. Priority Date: 06/09/1998
  • Status: Expired due to Term
First Claim
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1. A control system for regulating bi-directional power flow from a power bus through a voltage converter to an auxiliary energy storage device, the control system comprising:

  • a power comparator for comparing a power signal on input terminals of the converter with a commanded power signal and producing a power comparison signal;

    a power regulator for transforming the power comparison signal to a commanded current signal;

    a current comparator for comparing the commanded current signal with a measured current signal on output terminals of the converter and producing a current comparison signal;

    a current regulator for transforming the current comparison signal to a pulse width modulator (PWM) duty cycle command signal;

    a PWM for using the PWM duty cycle command signal to control electrical switches of the converter.

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